Merge pull request #226 from Alexendoo/const-generics-fixes

Update some const_generics test cases

Author: JohnTitor

ices/62222.rs

@@ -1,6 +1,6 @@
 #![feature(const_generics)]
 
-use std::mem::MaybeUninit;
+use std::mem::{self, MaybeUninit};
 
 #[repr(transparent)]
 pub struct Vector<T, const N: usize>([T; N]);

ices/62504.rs

@@ -16,6 +16,4 @@ impl<const X: usize> ArrayHolder<{X}> {
     }
 }
 
-fn main() {
-    let mut array = ArrayHolder::new();
-}
+fn main() {}